Class: Extface::HandlerController

Inherits:
ApplicationController show all
Includes:
ActionController::Live
Defined in:
app/controllers/extface/handler_controller.rb

Instance Method Summary collapse

Methods inherited from ApplicationController

#extfaceable, #index

Instance Method Details

#pull ⇒ Object 



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# File 'app/controllers/extface/handler_controller.rb', line 12

def pull
  # request.body.read usable?
  unless device.present?
    render nothing: true, status: :not_found
  else
    response.headers['Content-Type'] = 'text/event-stream'
    # find current job or get new one
    Extface.redis_block do |r|
      Timeout.timeout(2) do
        if job = device.jobs.active.find_by(id: cookies[:extface]) || device.jobs.active.try(:first)
          cookies.permanent[:extface] = job.id
          p "Processing job #{job.id}"
          list, data = r.blpop(job.id, timeout: 1)
          #TODO rescue here will loose data
          while data
            response.stream.write data
            r.publish(job.id, "OK")
            list, data = r.blpop(job.id, timeout: 1)
          end
        end
      end #timeout 
    end #redis block
  end
rescue => e
  if e.instance_of? Timeout::Error
    p "will continue next time #{e.message}"
  else
    render nothing: true, status: :internal_server_error
  end
ensure
  response.stream.close
end

#push ⇒ Object 



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# File 'app/controllers/extface/handler_controller.rb', line 45

def push
  # get  request.body.read
  # if it is push message, process it
  response.headers['Content-Type'] = 'text/event-stream'
  p request.body.read
  Extface.redis.subscribe(:alabala) do |on|
    on.message do |event, data|
      response.stream.write("event: #{event} data: #{data}\n\n")
      Extface.redis.unsubscribe
    end
  end
  response.stream.write "finish\n"
ensure
  response.stream.write "failed\n"
  response.stream.close
end

#settings ⇒ Object 



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# File 'app/controllers/extface/handler_controller.rb', line 62

def settings
  render text: 'settings'
end